Q5_0409_A_BRIDGE_WIRING_INSPECTION_AND_REPAIRS_AMEND_ONE.docx

USNS SACAGAWEA

(T-AKE 2)

COMMUNICATION AND NAVIGATIONAL AIDS RFP NO. N32205-19-R-6006

6 JUN 2019

ITEM NO. 0409 CATEGORY “A” MSC/N756/CSI/adt

BRIDGE_WIRING_INSPECTION AND REPAIRS – AMEND ONE

1.0 ABSTRACT:

1.1 This item describes the requirement to provide the services of a qualified technician familiar with the T-AKE ships to inspect bridge network wiring harnesses and determine labeling requirements.

2.0 REFERENCES:

2.1 American Bureau of Shipping (ABS) Rules for Building and Classing Steel Vessels

2.2 MSC Drawing, 803-7081122, Military Sealift Command General Technical Requirements (GTRs)

2.3 IEEE STD 45-2002, Recommended Practice for Electric Installations on Ships

2.4 MSC Safety Management System Procedure 2.1-004-ALL, Lock-out/Tag-out

3.0 ITEM LOCATION/DESCRIPTION:

3.1 Location:

3.1.1 Navigation Bridge (07 Level)

3.1.2 08 Level

3.1.3 IC Gyro Room (07 Level)

3.2 Quantity: Various

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES: None.

5.0 NOTES:

5.1 The contractor and all subcontractors, regardless of tier, must consult the General Technical Requirements (GTR) to determine applicability to this work item. In performance of this work item, the contractor and all subcontractors regardless of tier must comply with the requirements of all applicable GTRs.

5.2 The contractor and all subcontractors regardless of tier are advised to review the other work items under this contract to determine their effect on the work required under this work item.

5.3 THIS SHIP CONTAINS HIGH VOLTAGE (HV) ELECTRICAL SYSTEMS. OBEY ALL POSTED AND VERBAL INSTRUCTIONS REGARDING SAFETY AND EXCLUSION FROM HIGH VOLTAGE AREAS. AT NO TIME APPROACH, WORK ON, OR ENTER A HIGH VOLTAGE AREA WITHOUT PROPER AUTHORIZATION.

5.4 T-AKE CLASS ELECTRICAL COLOR CODING DOES NOT FOLLOW CONSISTENT COLOR SCHEME. THE SHIP IS KNOWN TO HAVE CURRENT CARRYING CONDUCTORS COLORED GREEN, BLUE, BLACK, AND WHITE. ASSUME ALL ELECTRICAL CABLES ARE ENERGIZED UNTIL TESTED AND PROVEN OTHERWISE. TEST ALL ELECTRICAL CABLES TO ENSURE THEY ARE DE-ENERGIZED PRIOR TO WORKING ON THE ITEM.

6.0 QUALITY ASSURANCE REQUIREMENTS: None additional.

7.0 STATEMENT OF WORK REQUIRED:

7.1 Inspect all bridge wiring, along with associated peripheral equipment, i.e. antennas, couplers, connection boxes printers, etc.

7.2 All Wiring Includes:

7.2.1 Power wiring (DC, 120 VAC, & 480 VAC)

7.2.2 Network wiring (LAN)

7.2.3 Signal wiring (NMEA 0183 & other proprietary protocols)

7.2.4 RF wiring (antenna cables)

7.2.5 Anything related to navigation, communication or signaling equipment.

7.3 All Wiring Excludes:

7.3.1 General 120 VAC receptacles outside of control cabinets

7.3.2 General lighting

7.3.3 Window washers and heaters

7.3.4 Other 480v power that may pass through Bridge

7.4 Contractor to reference currently installed systems against the most current bridge electronics diagrams.

7.5 Equipment that is new shall be added in the form of a new diagram.

7.6 Equipment that is no longer installed shall be edited from the diagram.

7.7 Comms and Power wires shall be labeled in accordance with the diagram.

7.8 Heat shrink labels on each wire that are visible at both termination points.

7.9 Wire color use should be uniform (currently it is flip flopped in numerous locations).

7.10 Cable jackets should be stripped back to the cabinet entry point, and wires should be neatly bundled in wire management trays.

7.11 Remove unused circuits & cabling

7.12 Ensure circuits that are present are color-coded and labeled IAW ABS / IEEE standards.

7.13 Ensure wiring is properly terminated IAW (ABS / IEEE)

7.14 Ensure wiring is properly labeled IAW ABS & DWG.

7.15 Provide as built DWG to incorporate the numerous historical changes to bridge / navigation equipment.

7.16 Ensure all cables are properly secured or banded

7.16.1 Some "bridge" wiring will extend to the IC Gyro Room, and to the 08 level.

7.17 Manufacturer's Representative

7.17.1 Provide the services of a qualified technician familiar with the T-AKE ships to perform all tasks outlined in this work item.

Chesapeake, VA 23320 Phone: 757-549-1143 Cell: 757-535-5134 Email: lou@intechmarine.com

8.0 GENERAL REQUIREMENTS: None Additional.

0409-4